Experimental Study on Effect of Contamination on Electric Field Distribution of 330kV Composite Insulator

2014 ◽  
Vol 986-987 ◽  
pp. 299-302
Author(s):  
Ding Jun Wen ◽  
Xiu Bin Zhang ◽  
Hong Gang Chen ◽  
Feng Jiang ◽  
Ya Ming Sun
Keyword(s):  
Experimental Study ◽  
Electric Field ◽  
Field Distribution ◽  
Electric Field Distribution ◽  
Test System ◽  
Composite Insulator ◽  
Pollution Flashover ◽  
Surface Electric Field ◽  
Field Measuring ◽  
Northwest Region

330kV transmission line in the northwest region of China is much complex while pollution flashover is a major threat to the safe operation of the system. In this paper, experimental study on effect of contamination on electric field distribution of 330kV composite insulator is presented. High voltage test system of 330kV composite insulator is established according to the ratio of 1:1. Surface electric field and potential of the insulator is measured using GDC-100 optical fiber voltage electric field measuring instrument. Potential, electric field distribution of the two kinds of 330kV composite insulator are tested in different environment of clean, dry and uniform pollution layer. The test and simulation result is also compared.

scholarly journals Estimation of Electrical Performance of a Polymer Insulator with Deposited Moss on the Surface under Impulse Voltage Condition in Foggy Weather

2018 ◽  
Vol 4 (4) ◽  
pp. 1
Author(s):  
Farah Asyikin Abd Rahman ◽  
Izadi M ◽  
Kadir M.Z.A. Ab ◽  
Jasni J
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
High Frequency ◽  
Electric Field Distribution ◽  
Simulation Experiment ◽  
Electrical Performance ◽  
High Frequency Structure Simulator ◽  
Polymer Insulator ◽  
Pollution Flashover ◽  
Field Behaviour

This paper presents a study about electric field behaviour of 10kV polymer insulator with moss deposition under foggy condition. The aim of this simulation experiment was to determine if this field affect the initiation of pollution flashover. To study this effect, simulations were carried out using High Frequency Structure Simulator (HFSS). The simulation experiment includes the results of electric field distribution along the insulator and also the magnitude of electric field at three different locations in identifying the parts of the insulator’s surface that likely to initiate pollution flashover. The moss deposited polymer insulator displayed uniformed and considerably intense distribution of electric field with the clean insulator. The field result showed the likelihood in discharging a corona effect.  In short, the results indicated that electric field along the insulator surface would likely be influenced by moss deposition and foggy air.

A new analytical model for the surface electric field distribution and breakdown voltage of the SOI trench LDMOS

2012 ◽  
Vol 21 (7) ◽  
pp. 078502 ◽  
Author(s):  
Xia-Rong Hu ◽  
Bo Zhang ◽  
Xiao-Rong Luo ◽  
Yuan-Gang Wang ◽  
Tian-Fei Lei ◽  
...  
Keyword(s):  
Electric Field ◽  
Analytical Model ◽  
Field Distribution ◽  
Breakdown Voltage ◽  
Electric Field Distribution ◽  
Surface Electric Field
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